I've got 3 of these high side drivers controlling 6 (two on each driver) lights. The current sense of one output seems to be affected by the output of another.
For example, if one light is on, the Vsense is ~8mV for that light. For another light the Vsense is ~200mV. However, when both lights are on, the Vense for the 8mV pin now reads 25mV. They are separate pins, with Rsense and a large R to the microcontroller pin for protection. There is also a decoupling capacitor on the pin.
Is there meant to be some sort of isolation technique not included in the datasheet to prevent this? The current is affected by all the lights, even if they are not connected to the same HSD.
